<template>
    <el-row class="background">
        <el-col :span="12" style="display: flex;display: -webkit-flex;align-items: center;justify-content: center;">
            <img src="../assets/images/login-left.png" alt="" style="width: 80%;">
        </el-col>
        <el-col :span="8" style="display: flex;display: -webkit-flex;flex-direction: column;
        align-items: center;justify-content: center;margin-top: -7%;">
            <div class="login-title-container">
                <!-- <h2>{{ title }}</h2> -->
                <h2>江苏省人民检察院</h2>
                <h2>视讯综合应用平台</h2>
                <!-- 江苏省人民检察院视讯综合应用平台 -->
            </div>
            <div class="login">
                <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
                    <h3 class="title">系统登录</h3>
                    <el-form-item prop="username">
                        <el-input
                            v-model="loginForm.username"
                            auto-complete="off"
                            placeholder="账号"
                            size="large"
                            type="text"
                        >
                            <template #prefix>
                                <svg-icon class="el-input__icon input-icon" icon-class="user"/>
                            </template>
                        </el-input>
                    </el-form-item>
                    <el-form-item prop="password">
                        <el-input
                            v-model="loginForm.password"
                            auto-complete="off"
                            placeholder="密码"
                            size="large"
                            type="password"
                            @keyup.enter="handleLogin"
                            show-password
                        >
                            <template #prefix>
                                <svg-icon class="el-input__icon input-icon" icon-class="password"/>
                            </template>
                        </el-input>
                    </el-form-item>
                    <el-form-item v-if="captchaEnabled" prop="code">
                        <el-input
                            v-model="loginForm.code"
                            auto-complete="off"
                            placeholder="验证码"
                            size="large"
                            style="width: 63%"
                            @keyup.enter="handleLogin"
                        >
                            <template #prefix>
                                <svg-icon class="el-input__icon input-icon" icon-class="validCode"/>
                            </template>
                        </el-input>
                        <div class="login-code">
                            <img :src="codeUrl" class="login-code-img" @click="getCode"/>
                        </div>
                    </el-form-item>
                    <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
                    <el-form-item style="width:100%;">
                        <el-button
                            :loading="loading"
                            size="large"
                            style="width:100%;"
                            type="primary"
                            @click.prevent="handleLogin"
                        >
                            <span v-if="!loading">登 录</span>
                            <span v-else>登 录 中...</span>
                        </el-button>
                        <div v-if="register" style="float: right;">
                            <router-link :to="'/register'" class="link-type">立即注册</router-link>
                        </div>
                    </el-form-item>
                </el-form>
                <!--  底部  -->

            </div>
        </el-col>
    </el-row>
    <div class="el-login-footer">
        <span>技术支持：上海佳盟计算机系统有限公司</span>
    </div>
</template>

<script setup>
import {getCodeImg} from "@/api/login";
import Cookies from "js-cookie";
import {decrypt, encrypt} from "@/utils/jsencrypt";
import useUserStore from '@/store/modules/user'

// const title = import.meta.env.VITE_APP_TITLE;

const title = "江苏省人民检察院视讯综合应用平台"
const userStore = useUserStore()
const route = useRoute();
const router = useRouter();
const {proxy} = getCurrentInstance();

const loginForm = ref({
    username: "",
    password: "",
    // username: "admin",
    // password: "jm@61020900",
    rememberMe: false,
    code: "",
    uuid: ""
});

const loginRules = {
    username: [{required: true, trigger: "blur", message: "请输入您的账号"}],
    password: [{required: true, trigger: "blur", message: "请输入您的密码"}],
    code: [{required: true, trigger: "change", message: "请输入验证码"}]
};

const codeUrl = ref("");
const loading = ref(false);
// 验证码开关
const captchaEnabled = ref(true);
// 注册开关
const register = ref(false);
const redirect = ref(undefined);

watch(route, (newRoute) => {
    redirect.value = newRoute.query && newRoute.query.redirect;
}, {immediate: true});

function handleLogin() {
    proxy.$refs.loginRef.validate(valid => {
        if (valid) {
            loading.value = true;
            // 勾选了需要记住密码设置在 cookie 中设置记住用户名和密码
            if (loginForm.value.rememberMe) {
                Cookies.set("username", loginForm.value.username, {expires: 30});
                Cookies.set("password", encrypt(loginForm.value.password), {expires: 30});
                Cookies.set("rememberMe", loginForm.value.rememberMe, {expires: 30});
            } else {
                // 否则移除
                Cookies.remove("username");
                Cookies.remove("password");
                Cookies.remove("rememberMe");
            }
            // 调用action的登录方法
            userStore.login(loginForm.value).then(() => {
                const query = route.query;
                const otherQueryParams = Object.keys(query).reduce((acc, cur) => {
                    if (cur !== "redirect") {
                        acc[cur] = query[cur];
                    }
                    return acc;
                }, {});
                router.push({path: redirect.value || "/", query: otherQueryParams});
            }).catch(() => {
                loading.value = false;
                // 重新获取验证码
                if (captchaEnabled.value) {
                    getCode();
                }
            });
        }
    });
}

function getCode() {
    getCodeImg().then(res => {
        captchaEnabled.value = res.captchaEnabled === undefined ? true : res.captchaEnabled;
        if (captchaEnabled.value) {
            codeUrl.value = "data:image/gif;base64," + res.img;
            loginForm.value.uuid = res.uuid;
        }
    });
}

function getCookie() {
    const username = Cookies.get("username");
    const password = Cookies.get("password");
    const rememberMe = Cookies.get("rememberMe");
    loginForm.value = {
        username: username === undefined ? loginForm.value.username : username,
        password: password === undefined ? loginForm.value.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
    };
}

getCode();
getCookie();
</script>

<style lang='scss' scoped>
.background {
    width: 100%;
    height: 100%;
    background-image: url("../assets/images/login-background.jpg");
    background-size: cover;
}

.login {
    display: flex;
    justify-content: center;
    align-items: center;
    // height: 100%;
    // background-image: url("../assets/images/login-background.jpg");
    // background-size: cover;
}

.login-title-container {
    // position: absolute;
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    width: 100%;
    // margin-top: 5.5rem;
    color: #fff;
    flex-direction: column;
    align-items: center;
    text-align: center;

    h2 {
        font-size: 2.8125rem;
        width: 100%;
        margin: 5px 0;
        font-family: cursive;
        font-weight: 600;
    }
}

.title {
    font-size: 1rem;
    margin: 0 auto 30px auto;
    text-align: center;
    color: #707070;
}

.login-form {
    border-radius: 6px;
    background: #ffffff;
    width: 30rem;
    padding: 25px 25px 5px 25px;
    margin-top: 2rem;
    opacity: 0.7;

    .el-input {
        height: 40px;

        input {
            height: 40px;
        }
    }

    .input-icon {
        height: 39px;
        width: 14px;
        margin-left: 0px;
    }
}

.login-tip {
    font-size: 13px;
    text-align: center;
    color: #bfbfbf;
}

.login-code {
    width: 33%;
    height: 40px;
    float: right;

    img {
        cursor: pointer;
        vertical-align: middle;
    }
}

.el-login-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-family: Arial;
    font-size: 1rem;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.login-code-img {
    height: 40px;
    padding-left: 12px;
}
</style>
